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Dataset Title:  NRL HYCOM 1/25 deg model output, Gulf of Mexico, 10.04 Expt 31.0, 2009-2014,
At Surface, Lon0360
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Institution:  Naval Research Laboratory   (Dataset ID: hycom_gom310S_Lon0360)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Make a graph
 
Dimensions ? Start ? Stride ? Stop ?  Size ?    Spacing ?
 time (UTC) ?      1977    1 day (even)
  < slider >
 latitude (degrees_north) ?      385    0.03611719 (uneven)
  < slider >
 longitude (degrees_east) ?      541    0.04 (even)
  < slider >
 
Grid Variables (which always also download all of the dimension variables) 
 mld (Mixed Layer Thickness (0.20 degC), m) ?
 mlp (MLT (0.03 kg/m3) [31.0H], m) ?
 qtot (Surface Heat Flux, w/m2) ?
 emp (Surface Water Flux, kg/m2/s) ?
 surface_temperature_trend (degC/day) ?
 surface_salinity_trend (PSU/day) ?
 ssh (Sea Surface Height, m) ?

File type: (more information)

(Documentation / Bypass this form) ?
 
(Please be patient. It may take a while to get the data.)


 

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.2386304e+9, 1.4093568e+9;
    String axis "T";
    String calendar "standard";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 18.09165, 31.96065;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range 262.0, 283.6;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  mld {
    Float32 _FillValue 1.267651e+30;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Physical Oceanography";
    String long_name "Mixed Layer Thickness (0.20 degC)";
    String standard_name "ocean_mixed_layer_thickness";
    String units "m";
    Float32 valid_range 0.98722214, 146.75081;
  }
  mlp {
    Float32 _FillValue 1.267651e+30;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Physical Oceanography";
    String long_name "MLT (0.03 kg/m3)  [31.0H]";
    String standard_name "ocean_mixed_layer_thickness";
    String units "m";
    Float32 valid_range 0.5657567, 120.77734;
  }
  qtot {
    Float32 _FillValue 1.267651e+30;
    Float64 colorBarMaximum 250.0;
    Float64 colorBarMinimum -250.0;
    String ioos_category "Heat Flux";
    String long_name "Surface Heat Flux";
    String standard_name "surface_downward_heat_flux_in_air";
    String units "w/m2";
    Float32 valid_range -395.25745, 19.699257;
  }
  emp {
    Float32 _FillValue 1.267651e+30;
    Float64 colorBarMaximum 1.0e-4;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Hydrology";
    String long_name "Surface Water Flux";
    String standard_name "water_flux_into_ocean";
    String units "kg/m2/s";
    Float32 valid_range -0.002320278, 0.07673011;
  }
  surface_temperature_trend {
    Float32 _FillValue 1.267651e+30;
    Float64 colorBarMaximum 4.0;
    Float64 colorBarMinimum -4.0;
    String ioos_category "Temperature";
    String long_name "Surface Temperature Trend";
    String units "degC/day";
    Float32 valid_range -5.2467747, 0.18820883;
  }
  surface_salinity_trend {
    Float32 _FillValue 1.267651e+30;
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum -1.0;
    String ioos_category "Salinity";
    String long_name "Surface Salinity Trend";
    String standard_name "tendency_of_sea_water_salinity";
    String units "PSU/day";
    Float32 valid_range -98.51709, 2.361164;
  }
  ssh {
    Float32 _FillValue 1.267651e+30;
    Float64 colorBarMaximum 2.0;
    Float64 colorBarMinimum -2.0;
    String ioos_category "Sea Level";
    String long_name "Sea Surface Height";
    String standard_name "sea_surface_elevation";
    String units "m";
    Float32 valid_range -0.55966896, 0.81102866;
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String Conventions "COARDS, CF-1.0, ACDD-1.3";
    String creator_email "hycomdata@coaps.fsu.edu";
    String creator_name "Naval Research Laboratory";
    String creator_type "institution";
    String creator_url "https://www.hycom.org";
    Float64 Easternmost_Easting 283.6;
    String experiment "31.0";
    Float64 geospatial_lat_max 31.96065;
    Float64 geospatial_lat_min 18.09165;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 283.6;
    Float64 geospatial_lon_min 262.0;
    Float64 geospatial_lon_resolution 0.04000000000000004;
    String geospatial_lon_units "degrees_east";
    String history 
"archv2ncdf3z
2024-12-13T05:47:44Z https://tds.hycom.org/thredds/dodsC/GOMl0.04/expt_31.0
2024-12-13T05:47:44Z https://coastwatch.pfeg.noaa.gov/erddap/griddap/hycom_gom310S_Lon0360.das";
    String infoUrl "https://www.hycom.org";
    String institution "Naval Research Laboratory";
    String keywords "30.1h, air, atmosphere, atmospheric, circulation, degc, density, downward, Earth Science > Atmosphere > Atmospheric Radiation > Heat Flux, Earth Science > Oceans > Ocean Circulation > Fresh Water Flux, Earth Science > Oceans > Ocean Circulation > Ocean Mixed Layer, Earth Science > Oceans > Salinity/Density > Salinity, Earth Science > Oceans > Sea Surface Topography > Sea Surface Height, elevation, flux, fresh, goml0.04, heat, heat flux, height, hycom, hydrology, into, kg/m3, laboratory, layer, level, mixed, mixed layer, mlt, naval, ocean, ocean_mixed_layer_thickness, oceanography, oceans, physical, physical oceanography, radiation, research, salinity, saln, sea, sea level, sea_surface_elevation, sea_water_practical_salinity, seawater, surf, surface, surface_downward_heat_flux_in_air, temperature, thickness, topography, trend, water, water_flux_into_ocean";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    Float64 Northernmost_Northing 31.96065;
    String source "HYCOM archive file";
    String sourceUrl "https://tds.hycom.org/thredds/dodsC/GOMl0.04/expt_31.0";
    Float64 Southernmost_Northing 18.09165;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary 
"NRL HYCOM 1/25 deg model output, Gulf of Mexico, 10.04 Expt 31.0, 2009-2014, At Surface

The HYCOM consortium is a multi-institutional effort sponsored by the
National Ocean Partnership Program (NOPP), as part of the U. S. Global Ocean
Data Assimilation Experiment (GODAE), to develop and evaluate a
data-assimilative hybrid isopycnal-sigma-pressure (generalized) coordinate
ocean model (called HYbrid Coordinate Ocean Model or HYCOM).";
    String time_coverage_end "2014-08-30T00:00:00Z";
    String time_coverage_start "2009-04-02T00:00:00Z";
    String title "NRL HYCOM 1/25 deg model output, Gulf of Mexico, 10.04 Expt 31.0, 2009-2014, At Surface, Lon0360";
    Float64 Westernmost_Easting 262.0;
  }
}

 

Using griddap to Request Data and Graphs from Gridded Datasets

griddap lets you request a data subset, graph, or map from a gridded dataset (for example, sea surface temperature data from a satellite), via a specially formed URL. griddap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its projection constraints (external link).

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

griddap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/griddap/jplMURSST41.htmlTable?analysed_sst[(2002-06-01T09:00:00Z)][(-89.99):1000:(89.99)][(-179.99):1000:(180.0)]
Thus, the query is often a data variable name (e.g., analysed_sst), followed by [(start):stride:(stop)] (or a shorter variation of that) for each of the variable's dimensions (for example, [time][latitude][longitude]).

For details, see the griddap Documentation.


 
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